Help Jupiter: Urgent Paw Amputation

my cat Jupiter has been limping on his paw for months now, we have taken him to the vet multiple times and have come down to the conclusion of amputating his paw due to the fact that he is at risk of developing bone cancer because in his x-ray, his bones are separating and it has created a hole. if it spreads, it will shorten his life and i really don’t want that. this cat is my absolute everything, my soul cat if you will. unfortunately, this is very short notice as he went in for another check up yesterday (april 27) and they want to amputate him sooner rather than later, his appointment for amputation is on tuesday, april 29th. neither me or my parents can afford the entire payment, so i am asking for just a minimum of $1,000. every little bit helps. thank you so much.

(photo of x-ray is below. there is a hole where the bones are separating in his wrist).